Question

(26+ x) +12=(x+24)+2x+30 помогите пж​

Answer 1

(26+ x) +12=(x+24)+2x+30

26+x+12=х+38

x+24+2x+30=3х+54

х+38=3х+54

х-3х=54-38

-2х=16

х=-8

Проверим:

(26-8)+12=(-8+24)-16+30

(26-8)+12=30

(-8+24)-16+30=30

30=30